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Old 04-23-2010, 11:14 AM   #102
bmwconnect
BMW Tuner
 
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Join Date: Mar 2010
Location: Ottawa
Posts: 883
I can pull codes with no problems and clear them but any programing and ecu sw has to be done while the car is hooked up on a battery charger. reading and writing from a Siemens ecu is dangerous without a constant voltage source. Example: if your Aux fan were to turn on in the middle of read out or write process it would lock up the ecu and the chip flash memory inside would have to be removed and it's painful process.
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